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  Metastable photo-induced superconductivity far above Tc

Chattopadhyay, S., Eckhardt, C., Kennes, D. M., Sentef, M. A., Shin, D., Rubio, A., et al. (2025). Metastable photo-induced superconductivity far above Tc. npj Quantum Materials, 10(1): 34. doi:10.1038/s41535-025-00750-x.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0010-F831-F Version Permalink: https://hdl.handle.net/21.11116/0000-0010-F834-C
Genre: Journal Article

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 Creators:
Chattopadhyay, S.1, Author
Eckhardt, C.2, 3, 4, Author           
Kennes, D. M.3, 4, 5, Author           
Sentef, M. A.2, 3, 6, 7, Author           
Shin, D.3, 5, 8, Author           
Rubio, A.3, 5, Author           
Cavalleri, A.3, 9, 10, Author           
Demler, E. A.11, Author
Michael, M.3, 5, Author           
Affiliations:
1Lyman Laboratory, Department of Physics, Harvard University, ou_persistent22              
2Theoretical Description of Pump-Probe Spectroscopies in Solids, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_3012828              
3Center for Free-Electron Laser Science (CFEL), ou_persistent22              
4Institut für Theorie der Statistischen Physik, RWTH Aachen University and JARA-Fundamentals of Future Information Technology, ou_persistent22              
5Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
6Institute for Theoretical Physics and Bremen Center for Computational Materials Science, University of Bremen, ou_persistent22              
7H H Wills Physics Laboratory, University of Bristol, ou_persistent22              
8Gwangju Institute of Science and Technology, ou_persistent22              
9Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938293              
10Department of Physics, Clarendon Laboratory, University of Oxford, ou_persistent22              
11Institute for Theoretical Physics, ETH Zürich, ou_persistent22              

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 Abstract: Inspired by the striking discovery of metastable superconductivity in K3C60 at 100K, far above Tc = 20 K, we discuss possible mechanisms for long-lived, photo-induced superconductivity. Starting from a model of optically-driven Raman phonons coupled to inter-band electronic transitions, we develop a microscopic mechanism for photo-controlling the pairing interaction. Leveraging this mechanism, we first investigate long-lived superconductivity arising from the thermodynamic metastable trapping of the driven phonon. We then propose an alternative route, where the superconducting gap created by an optical drive leads to a dynamical bottleneck in the equilibration of quasi-particles. We conclude by discussing the implications of both scenarios for experiments that can be used to discriminate between them. Our work provides falsifiable explanations for the nanosecond-scale photo-induced superconductivity found in K3C60, while simultaneously offering a theoretical basis for exploring metastable superconductivity in other quantum materials.

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Language(s): eng - English
 Dates: 2024-08-152025-03-102025-03-28
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: arXiv: 2303.15355
DOI: 10.1038/s41535-025-00750-x
 Degree: -

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Project name : We acknowledge stimulating discussions with E. Rowe, G. Jotzu, M. Buzzi, B. Halperin, A. Polkovnikov, S. Gopalakrishnan, A. Georges, M. Devoret, P.A. Lee, M. Eckstein, G. Refael, A. Auerbach, & A.J. Millis. S.C. is grateful for support from the NSF under Grant No. DGE-1845298 & for the hospitality of the Max Planck Institute for the Structure and Dynamics of Matter. M.H.M. would like to acknowledge the support from the Alexander von Humboldt Foundation. D.S. was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. RS-2023-00253716 and RS-2023-00218180). ED acknowledges support from the ARO grant number W911NF-21-1-0184 and the SNSF project 200021−212899. We also acknowledge support from the European Research Council (ERC-2015-AdG694097), the Cluster of Excellence “Advanced Imaging of Matter” (AIM), Grupos Consoldados (IT1453-22), Deutsche Forschungsgemeinschaft (DFG)-SFB-925-project 170620586, DFG–Cluster of Excellence Matter and Light for Quantum Computing (ML4Q) EXC 2004/1–390534769 (within the RTG 1995), DFG-508440990, and the Max Planck-New York City Center for Non-Equilibrium Quantum Phenomena. The Flatiron Institute is a division of the Simons Foundation. Open Access funding enabled and organized by Projekt DEAL.
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Source 1

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Title: npj Quantum Materials
  Other : npj Quantum Mater.
Source Genre: Journal
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Publ. Info: [London] : Nature Publishing Group
Pages: - Volume / Issue: 10 (1) Sequence Number: 34 Start / End Page: - Identifier: ISSN: 2397-4648
CoNE: https://pure.mpg.de/cone/journals/resource/2397-4648